{"title":"Fiber Reinforcement","description":"\u003cp\u003eFiber reinforcement addresses the three most common weaknesses of concrete, screed, and repair mortar simultaneously: shrinkage cracking, lack of impact resistance, and vulnerability during the early strength development phase. By mixing in fibers, these properties can be improved without significantly changing the mixing ratio or workability.\u003c\/p\u003e\n\u003ch3\u003eWhat is fiber reinforcement?\u003c\/h3\u003e\n\u003cp\u003eFiber reinforcement involves adding short, randomly distributed fibers to the cement-based material mix. Unlike traditional rebar, the fibers do not carry load but hold the binder matrix together at a microscopic level, preventing the spread of microcracks and early splitting.\u003c\/p\u003e\n\u003ch3\u003ePolypropylene (PP) fiber\u003c\/h3\u003e\n\u003cp\u003eThe most widely used type of fiber reinforcement. Due to its low melting point, it is not suitable for fire-resistant concrete, but in general concrete, screed, and repair mortar, it offers the following benefits:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReduction of shrinkage cracking during the early setting phase\u003c\/li\u003e\n\u003cli\u003eIncreased impact resistance and chip resistance\u003c\/li\u003e\n\u003cli\u003eImproved frost resistance (lower thermal expansion stress in the microstructure)\u003c\/li\u003e\n\u003cli\u003eFire resistance aspect: PP fibers melt around 160°C and leave channels that help relieve pressure generated in concrete during fire exposure (required in fire-resistant concrete design)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSteel fiber\u003c\/h3\u003e\n\u003cp\u003eHas higher tensile strength and modulus of elasticity than PP fiber. Used in industrial floors, crack-resistant screeds, and special load-bearing concrete structures. Steel fiber not only protects concrete against cracking but also improves post-crack load-bearing capacity (post-crack ductility).\u003c\/p\u003e\n\u003ch3\u003eFiber quantity and mixing considerations\u003c\/h3\u003e\n\u003cp\u003eThe fiber amount is dosed in kg\/m³. Too few fibers do not provide significant reinforcement, while too many impair workability and surface smoothness. Manufacturer recommendations are always product- and application-specific.\u003c\/p\u003e\n\u003cp\u003eBrowse our fiber reinforcement materials or request advice for fiber reinforcement solutions suitable for your concrete and screed system.\u003c\/p\u003e","products":[{"product_id":"kerakoll-steel-fiber","title":"Kerakoll Steel Fiber","description":"\u003cp\u003eSteel fiber can be molded to produce extremely high-strength hard concretes and mortars.\u003c\/p\u003e\n\n\u003cp\u003e Kerakoll Steel Fiber is a steel fiber made from cold-drawn steel wire with high resistance and high carbon content. They comply with the MSZ EN 14889‑1 standard for steel fibers for structural use.\u003c\/p\u003e\n\n\u003ctable\u003e\n\n\u003ctbody\u003e\n\n\u003ctr\u003e\n\n\u003cth\u003e Wrapping\u003c\/th\u003e\n\n\u003ctd\u003e box 6.5 kg\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003cth\u003e Material requirement\u003c\/th\u003e\n\n\u003ctd\u003e for every 4 bags of \u003ca href=\"\/en\/products\/kerakoll-geolite-magma-xenon\"\u003eGeoLite Magma Xenon\u003c\/a\u003e or \u003ca href=\"\/en\/products\/kerakoll-geolite-magma\"\u003eGeoLite Magma\u003c\/a\u003e 1 package of Steel Fiber (6.5% of the powder weight)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\u003ctr\u003e\n\n\u003cth\u003e Storage\u003c\/th\u003e\n\n\u003ctd\u003e for unlimited time\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n\n\u003c\/tbody\u003e\n\n\n\u003c\/table\u003e","brand":"Kerakoll","offers":[{"title":"Default Title","offer_id":42763027022082,"sku":"17019","price":65850.0,"currency_code":"HUF","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/8027\/4946\/files\/kerakoll-steel-fiber-geo-habarcsok-betonhoz-37278676222210.jpg?v=1702750871"}],"url":"https:\/\/www.masterworks.hu\/en\/collections\/szerkezeti-javitas-szalerosites.oembed","provider":"Masterworks Hungary","version":"1.0","type":"link"}